Corrected rules for using an item, under Slime spell

spheres.tex

@@ -249,7 +249,7 @@ Those who fail, fall over, becoming \textit{prone}.%
 
 Some kind of liquid must be in the right place for the spell to work.
 Casters acting quickly often carry their own water.
-Throwing water requires 8 initiative for using an item, as usual.
+Throwing water requires 4 AP for using an item, as usual.
 
 \spell{Purify Air}{Continuous}{Seafaring}{Clear air in a small area}